Measurement:
Veritissium "Roundest object" and the kilogram: https://www.youtube.com/watch?v=ZMByI4s-D-Y

Kinematics:
"Speed and Velocity" by They Might Be Giants: http://www.youtube.com/watch?v=DRb5PSxJerM

Projectile Motion:
ayo galileo.jpg
swimming across a river with current:
hthttps://www.youtube.com/watch?v=LyEq_5OuAS4
or http://www.youtube.com/watch?v=DVU93vLzI1k
Feather and hammer drop on the moon: http://www.youtube.com/watch?v=5C5_dOEyAfk in a vacuum: http://www.youtube.com/watch?v=_XJcZ-KoL9o&feature=related BBC in a giant vacuum room:
http://io9.com/you-know-how-this-experiment-ends-but-you-should-watch-1653628513?utm_campaign=socialflow_io9_facebook&utm_source=io9_facebook&utm_medium=socialflow

Horizontal and vertical projectile motion: http://www.youtube.com/watch?v=qErh402eJgI

"Mythbusters" dropped bullet vs horizontally shot bullet:
http://www.youtube.com/watch?v=abUBrQmI33Q

MIT video of Monkey and Gun Demo: http://techtv.mit.edu/videos/735-monkey-and-a-gun

Dynamics
"Mythbusters" car crash: https://www.youtube.com/watch?v=r8E5dUnLmh4